Midget has a well stocked bag, but I would NEVER use the equipment in a personal bag on a scene I drove up on. Everyone repeat after me; my license is too valuable to be wasted by being a cowboy. If I'm not on a truck, I don't carry an aid bag, and even if I did, I'm not using it on a stranger. I like being able to work as a paramedic and make my house payments and feed my family. I'm not losing my license because I decided to be a rebel and go try to "save" people at an accident scene. Help, yes. First aid, yes. Advanced procedures, to include Celox, IV, needle decompression, HELL NO. Anything beyond Boy Scout basic first aid, I'm no doing in the field without being on duty on a truck.
Things you need.
1. Training. CPR, first aid, maybe first responder or EMT-basic if you really want to. Training is everything. All the toys in the world do zero good if you don't know how to use them.
2. Fire extinguisher. Great idea. Really really good idea. Even for self rescue.
3. Rubber gloves. Walmart, Auto-Zone, Galls, do a search on google. Lots of places carry them.
4. Did I say training already.
Go get trained, then buy the stuff you learned about in training. Those are the things you'll know how to use. No use buying a bunch of crap that you don't know how to use.
Also, no offense USMCsniper dude, because I didn't read real closely your post about improvising a tourneq, but WTF are you talking about? Why would you ever advise someone who is SETTING UP A KIT PRIOR TO AN EVENT to improvise anything. How much room does a CAT or SOF take up? It's nice to improvise if you need to, but proper planning will help a lot.